| DOI: | 10.1002/grl.50127
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| 论文题名: | Do seismic waves sense fracture connectivity? |
| 作者: | Rubino J.G.; Guarracino L.; Müller T.M.; Holliger K.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9307
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| EISSN: | 1944-9038
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| 出版年: | 2013
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| 卷: | 40, 期:4 | | 起始页码: | 692
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| 结束页码: | 696
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| 语种: | 英语
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| 英文关键词: | fractured rocks
; numerical simulations
; porous media
; seismic attenuation
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| Scopus关键词: | Computer simulation
; Energy dissipation
; Flow of fluids
; Porous materials
; Rocks
; Seismology
; Embedding matrices
; Fracture connectivity
; Fractured rock
; Fractured rock mass
; Hydraulic properties
; Intersection angles
; Seismic attenuation
; Wave-induced fluid flow
; Fracture
; compressibility
; fluid flow
; fracture flow
; fracture initiation
; hydraulic property
; poroelasticity
; porous medium
; rock mass response
; seismic attenuation
; seismic wave
; simulation
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| 英文摘要: | A defining characteristic of fractured rocks is their very high level of seismic attenuation, which so far has been assumed to be mainly due to wave-induced fluid flow (WIFF) between the fractures and the pore space of the embedding matrix. Using oscillatory compressibility simulations based on the quasi-static poroelastic equations, we show that another important, and as of yet undocumented, manifestation of WIFF is at play in the presence of fracture connectivity. This additional energy loss is predominantly due to fluid flow within the connected fractures and is sensitive to their lengths, permeabilities, and intersection angles. Correspondingly, it contains key information on the governing hydraulic properties of fractured rock masses and hence should be accounted for whenever realistic seismic models of such media are needed. Key Points Wave-induced fluid flow effects in fractured rocks are comprehensively simulated A new manifestation of wave-induced flow due to fracture connectivity is found Additional seismic energy loss is produced by flow within connected fractures ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878192519&doi=10.1002%2fgrl.50127&partnerID=40&md5=0cc402b0a1c0e257f0d2b5d5310a4d62
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6571
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Applied and Environmental Geophysics Group, University of Lausanne, CH-1015 Lausanne, Switzerland
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| Recommended Citation: | |
Rubino J.G.,Guarracino L.,Müller T.M.,et al. Do seismic waves sense fracture connectivity?[J]. Geophysical Research Letters,2013-01-01,40(4).
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